Approved at a public hearing during the Board of Directors meeting held May 9, 2018, and further authorized through Resolution 2018-07, the following is in effect:
All sewer lateral repairs and new sewer lateral construction in the Tam Valley area require a permit issued from Tamalpais Community Services District (TCSD).
A Lateral Permit ensures that repairs and construction projects in the public right-of-way will be performed to meet standards set by TCSD and the County of Marin, and insures the safety of the public during the process.
When do I need a permit?
A Lateral Permit is required any time someone encroaches in the public right-of-way, replaces or makes repairs to the sewer lateral, either for construction work on private property, sidewalks, driveway approaches, or underground utilities.
Apply for a lateral permit
Lateral permit applications may be obtained from our district office located at 305 Bell Lane, Mill Valley CA, 94941, or you can download the application here:
Please refer to the adopted Fee Schedule below for permits issued by TCSD. If a Lateral Permit needed does not fit in a category below, the permit fee is based on Capacity Charge (new construction) & Connection Fee/Inspections. A security bond may also be required for construction, sewer/lateral and sidewalk projects.
Single Family Residential $17,384 - Per DU
Duplexes $11,591 - Per DU
Multi-Family $9,933 - Per DU
Commercial $17,384 - Per EDU
(DU = dwelling unit EDU = equivalent dwelling unit)
Single Family Residential $571
Multi-Family Residential Actual time & material costs
(minimum charge $571)
What do I do once I obtain a permit?
Once a Lateral Permit has been issued, work or placement of dumpsters or other approved items may begin. Any conditions and inspections noted on the permit must be complied with and followed. Interim and final inspections are required for all construction projects. In most cases, Lateral Permits are valid for a period of 30 days from date approved, but may be extended upon review and approval with payment of additional fees.
Installation Requirements for 4" Laterals
The following are requirements provided by the District's Ordinance 96 in the Tamalpais Community Services District and must be adhered to in the construction of sewer laterals in this district.
1. A permit must be obtained at the office of the Tamalpais Community Services District.
2. All permit, inspection and connection fees must be paid before connection to the district sewer system.
All work shall be subject to at least two inspections by district staff. One inspection to be performed before the sewer lateral is covered and one after covering the sewer lateral, placing clean-outs and installation of back flow prevention devices. (Additional return visits/re-inspections are subject to additional charges)